It's not related to size. Jupiter is the fastest rotating planet despite being the biggest. day only last 10 hours.Mmmm... Now rotation wise and all, I will need to be careful. If bigger, then the rotation cycle and the seasons will be longer, unless the speed makes up for it but then it will cause more gravity and not just that... Think about those studying the sky when sailing across the ocean... If it moves faster... Mmmm..
Venus on the contrary can barely make 1 rotation in a Venusian year.